[Bug target/100626] [11/12 Regression] ICE Segmentation fault (during RTL pass: split1) since r11-165-geb72dc663e9070b2

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100626

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Uros Bizjak <u...@gcc.gnu.org>:

https://gcc.gnu.org/g:d39fbed75810fc7478842503ecb0268b85dc9c2e

commit r12-878-gd39fbed75810fc7478842503ecb0268b85dc9c2e
Author: Uros Bizjak <ubiz...@gmail.com>
Date:   Tue May 18 15:45:54 2021 +0200

    i386: Fix split_double_mode with paradoxical subreg [PR100626]

    split_double_mode calls simplify_gen_subreg, which fails for the
    high half of the paradoxical subreg.  Return temporary register
    instead of NULL RTX in this case.

    2021-05-18  Uroš Bizjak  <ubiz...@gmail.com>

    gcc/
            PR target/100626
            * config/i386/i386-expand.c (split_double_mode): Return
            temporary register when simplify_gen_subreg fails with
            the high half od the paradoxical subreg.